CN207650070U - A kind of device for determining permeation coefficient of seepy material - Google Patents
A kind of device for determining permeation coefficient of seepy material Download PDFInfo
- Publication number
- CN207650070U CN207650070U CN201721492445.1U CN201721492445U CN207650070U CN 207650070 U CN207650070 U CN 207650070U CN 201721492445 U CN201721492445 U CN 201721492445U CN 207650070 U CN207650070 U CN 207650070U
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- water
- cushion chamber
- water inlet
- injecting cavity
- limiting
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- 239000000463 material Substances 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 204
- 238000012360 testing method Methods 0.000 claims abstract description 49
- 238000005303 weighing Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 4
- 241000973497 Siphonognathus argyrophanes Species 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 230000003447 ipsilateral effect Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 9
- 230000007547 defect Effects 0.000 abstract description 2
- 230000035699 permeability Effects 0.000 description 9
- 239000011449 brick Substances 0.000 description 7
- 239000010426 asphalt Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 239000004567 concrete Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000011380 pervious concrete Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000004579 marble Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model provides a kind of device for determining permeation coefficient of seepy material, including subject support means, head device for limiting, test piece fixing device, through water collecting device and penetrates water metering device；Head device for limiting is only fixedly connected by side with support device top；Head device for limiting side wall is equipped with water inlet and gap, and water inlet is less than gap；Water inlet cushion chamber and spilling water cushion chamber surround water-injecting cavity and are arranged jointly；Water-injecting cavity bottom is provided with through-hole one；Test piece fixing device has the mounting plate for opening up through-hole two, mounting plate side that the short tube opposite with through-hole two is fixedly mounted；The short tube is for the fixed test specimen to be measured that dangles；Include water receiving container and aqueduct through water collecting device；Include the container with weighing function through water metering device.Device for determining permeation coefficient described in the utility model overcomes the defects of existing splashing of existing equipment water-injecting cavity and not steady enough water surface, and the water filling water surface is more steady, further improves measurement accuracy.
Description
Technical field
The utility model is related to a kind of device for determining permeation coefficient more particularly to a kind of concrete, pervious asphalt, water-permeable bricks
The device for determining permeation coefficient of equal seepy materials.
Background technology
The ground of the main life area (city square, pavement, commercial street, parking lot etc.) of city dweller is main at present
It is laid with using the fluid-tight hardened material such as granite, marble, pitch, cement, compared with natural soil, Ordinary hardening material
Expect that ground lacks respiratory, rain penetration and heat absorbing capability are poor, consequently also bring a series of problem.When raining,
Due to hardened material ground bad hydraulic permeability, ground easy tos produce ponding, and inconvenience is brought to people’s lives；Valuable water money
Source is lost in subsoil drain, has aggravated the burden of sewerage system；Meanwhile surface water cannot be mended well
It gives, seriously affects the health of urban vegetation, increase municipal administration greening burden.Seepy material is the coagulation for having continuous pore structure
Soil, pervious asphalt, water-permeable brick, porous wall brick, eco-concrete etc. have good water penetration, increasingly obtain the pass of people
Note.Therefore, pervious surface and porous pavement are widelyd popularize for restoring urban surface environment, mitigates pumping equipment pressure, mitigates
Municipal administration greening burden etc. has great importance.
Pervious concrete, pervious asphalt, water-permeable brick structure design in, coefficient of permeability is an important technology index,
The size of coefficient of permeability directly affects the pervious materials such as pervious concrete, pervious asphalt, water-permeable brick, porous wall brick, eco-concrete
The quality of material.However, at present about pervious concrete, pervious asphalt, water-permeable brick coefficient of permeability test but in the presence of practice answer
Technical bottleneck problem.Although having the technology and methods that some coefficients of permeability measure in practice, for example, Chinese patent literature
CN104266953A, CN105203443A, CN201368839Y, CN202814846U etc. individually disclose different permeable systems
Test specimen, but is all placed in a larger sink with gap by number measuring apparatus in these equipment, and when measurement penetrates test specimen
Water can enter the overflow groove, calculate the permeable of test specimen by measuring to be through water in overflow groove and squeeze the water of spilling slot
Coefficient.But this kind of device and method are all not mature enough, and sink depth is different, and squeeze pressure is different, and sink width is different,
Squeeze overflow slot water it is unstable, permeable test specimen lateral fluid side leakage, there are complicated, cumbersome, measurement error compared with
Greatly, the problems such as waste water resource, not environmentally and application scenario limits.
Measurement device disclosed in 106769782 A of Chinese patent literature CN has broken the routine of above-mentioned typical measuring arrangements,
Overflow groove is no longer set, also no longer test specimen is placed in overflow groove, but is provided with open test piece fixing device, effectively
Coefficient of permeability measuring device is simplified, the link and factor that may influence measurement accuracy are reduced.In addition, the device no longer measures
The amount of overflow groove expressed water, but directly collect and measure the water flowed out from test specimen lower surface, this ensure that measured is saturating
The authenticity and validity of water amount substantially increase the accuracy of coefficient of permeability measurement.But pass through practice and find, the equipment
There is problem to be solved there are still some, for example, the water filling cavity configuration of the equipment is easy to splash water about during upper water, leads
Cause the water surface not steady etc. enough, this will produce no small influence to the result of actual test.
Therefore, it is necessary to which the improvement by structure overcomes above-mentioned technical problem, the section of coefficient of permeability measurement is further increased
The property learned and accuracy.
Invention content
The purpose of this utility model is that：A kind of device for determining permeation coefficient of permeable construction material is provided, can be overcome
The defects of existing splashing of existing equipment water-injecting cavity and not steady enough the water surface.
Technical solution is used by the utility model realizes above-mentioned purpose：
First, a kind of device for determining permeation coefficient of seepy material is provided, including subject support means, head limit dress
Set, test piece fixing device, through water collecting device and penetrate water metering device；
The head device for limiting is only fixedly connected by side with the support device top；The head limit
Determine device side wall and be equipped with water inlet and gap, water inlet is less than gap；The head device for limiting inner space point
It is divided into water cushion chamber, water-injecting cavity and spilling water cushion chamber；The water-injecting cavity is located at centre, and the water inlet cushion chamber is located at outer
The lower layer enclosed, the spilling water cushion chamber are located at the upper layer of periphery, i.e. water inlet cushion chamber and spilling water cushion chamber surrounds water filling jointly
Chamber is arranged；The water inlet cushion chamber is provided at least two water filling port into water-injecting cavity on different sides；The water-injecting cavity is logical
Open top is crossed to communicate with the spilling water cushion chamber；The water inlet cushion chamber is connected by the water inlet and water inlet pipe
It is logical；The spilling water cushion chamber is connected to by the gap with overflow pipe；The water-injecting cavity bottom is provided with through-hole one, with
The test piece fixing device communicates；
The test piece fixing device has the mounting plate for opening up through-hole two, mounting plate side to be fixedly mounted and through-hole two-phase
To short tube；The mounting plate other side is tightly fastened with the lower surface of the head device for limiting and connect, and through-hole one, logical
Hole two and short tube mouth are just opposite；The short tube is for the fixed test specimen to be measured that dangles；
Described is mounted on the subject support means lower part through water collecting device, is located under the test piece fixing device
Side, including water receiving container and aqueduct, the water receiving upper opening of container area are more than the short tube lower open area, the water receiving
Container bottom is open, and water metering device is penetrated by the aqueduct connection；
Described is located at through water metering device below the water receiving container, includes the container with weighing function.
In the embodiment of the utility model, the subject support means are not particularly limited in shape, structure, such as
Can be skeleton, table type etc..
In the embodiment of the utility model, there is no particular limitation for the shape of the head device for limiting, can be prism
Body or cylinder.In the preferred scheme of the utility model, the head device for limiting is in integrally rectangular shaped post.
In the embodiment of the utility model, the water inlet and gap opened up on the head device for limiting side wall can be with
It on same facade, can also be on different facades, as long as gap position is higher than water inlet position, it will be able to effectively keep away
Exempt from the spillage for injecting water in test process and the impact to head liquid level, significantly improves head stability.The utility model is excellent
In the scheme of choosing, the water inlet and gap are in together on the same side of head device for limiting.
In the embodiment of the utility model, the described water inlet cushion chamber and spilling water cushion chamber are to the water-injecting cavity around can be with
It is that four sides surrounds, can also be that three faces surround, at least two water filling port is all opened in the position far from the water inlet；
In the preferred scheme of the utility model, the water inlet cushion chamber and spilling water cushion chamber are set from three faces around the water-injecting cavity
It sets, and is symmetrical arranged 2 groups of water filling ports on the opposite side wall of water inlet cushion chamber and is communicated with water-injecting cavity.
In the embodiment of the utility model, there is no particular limitation for the water filling port specification and shape, is preferably laterally arranged
Flat rectangular water filling port or laterally consecutive porous type water filling port.
In the embodiment of the utility model, the test piece fixing device is used for the good test specimen of side seal and described in test
Watertight connection is realized in water-injecting cavity lower end, therefore the Specimen Shape tested as needed, the short tube can be square tubes, can also
It is pipe or polygon pipe.And waterproof material layer is being lined with water-injecting cavity lower end junction as needed.
In the embodiment of the utility model, the water inlet pipe and overflow pipe external water work and water storage can be set respectively
It is standby, a water storage apparatus with water pump can also be connected jointly, to recycle the water outlet of overflow pipe.
In the preferred scheme of the utility model, the subject support means top is further provided with control and display is single
Member, the control and display unit are at least provided with input equipment, the chip of preset calculation procedure, storage device and display screen；
The chip is electrically connected with described through water metering device, for receiving the measured data through water metering device；It is described
Input equipment be electrically connected with the chip, for being manually entered operational order to chip；The storage device with it is described
Chip electrical connection, for storage chip provide data；The display screen is electrically connected with the chip, for showing core
The result of piece processing.
In the further preferred scheme of the utility model, the subject support means bottom is further provided with water pump
Water storage device；The water storage device passes through the water inlet of water pump and pipeline connection by the pipeline connection gap
Mouthful, at the same can also by water pump and pipeline connection it is described through container of the water with weighing function；With this configuration, it can will test
In gap water outlet import the water storage device, can also be pumped into water storage device through water by complete to weigh after test, and
The water of above-mentioned importing is recycled as test with water when testing next time.
Device for determining permeation coefficient application method described in the utility model is as follows：
1) blocky seepy material test specimen is taken, selects two parallel planes of test specimen as test surfaces, other than test surfaces
Surface of test piece carries out first time encapsulation process using elaxtic seal；
2) step 1) treated test specimen is using upper and lower end is in end where two test surfaces, by water-injecting cavity described in the face of upper end
The through-hole one of bottom is inserted into the short tube of test piece fixing device, reuses elaxtic seal and wraps up in test specimen and short tube lower opening
Tightly, second of encapsulation process is completed, test specimen is made to overhang below the head device for limiting；
3) water inlet pipe is opened, water is flowed into through water inlet in the water inlet cushion chamber, and water level is around water-injecting cavity
In the water inlet cushion chamber of setting in a ring or semi-circular rises, water level reaches same from multiple directions after at least two water filling port
When injection water-injecting cavity in, water level is increased beyond and diffuses in the spilling water cushion chamber after its open top in water-injecting cavity, spilling water buffering
The water of intracavitary is overflowed by the gap, and the water storage apparatus is reached through pipeline；
4) the detection head stability is opened and is measured through water after head stability persistently reaches preset standard
Device, Arbitrary Increment Q and corresponding time T of the record through water；
5) coefficient of permeability is calculated using following parameter：The area W for the test specimen test surfaces that step 1) measures, step 4) record
Increased water Q in time T and time T.
Compared with prior art, the device for determining permeation coefficient of the seepy material of the utility model has various beneficial
Effect is mainly reflected in：
1, it can be quickly obtained the test head of high stability, further improve measurement accuracy.
The measurement device of the utility model mainly obtains high stability head by the following：
1. more sides open up water filling port, single direction single-point water filling impact test piece and splashing are avoided, contributes to head steady
It is fixed；
2. gap is higher than water inlet, head liquid level is made to be higher than water inlet and water filling port, avoided high into water and water filling port
Head caused by water filling water impact head liquid level fluctuates when head liquid level, and head stability is improved greatly；
3. water inlet cushion chamber and spilling water cushion chamber are all centered around around water-injecting cavity and are arranged, allows the water to from different directions while noting
Enter water-injecting cavity, can also allow the water in water-injecting cavity to be gone out simultaneously from multiple directions overflow, with traditional water filling and spilling water all in list
One side single opening is compared, and the fluctuation of water is significantly reduced, and improves the speed that the water surface reaches balance.
Description of the drawings
Fig. 1 is the overall structure diagram of 1 device for determining permeation coefficient of embodiment.
Fig. 2 is the side, sectional structure chart of 1 device for determining permeation coefficient of embodiment.
Fig. 3 is the structural schematic diagram for determining head water tank of 1 device for determining permeation coefficient of embodiment；It is wherein upper to arrange left and right two
Figure is that water tank is integrally overlooked and upward view respectively；Lower row is that three cutting planes that the vertical view is marked show respectively from left to right
It is intended to.
Fig. 4 is that the test block stationary fixture of 1 device for determining permeation coefficient of embodiment is determining head water tank bottom scheme of installation.
Figure label is described as follows：
1- supporting box,
2- controllers,
3- determines head water tank, 31- water inlets, 311- water inlet pipes, 32- gaps, 321- overflow pipes, and 33- is intake cushion chamber,
34- water-injecting cavities, 341- water filling ports, 342- open tops, 35- spilling water cushion chambers, 36- through-holes one,
4- test block stationary fixtures, 41- through-holes two, 42- mounting plates, 43- short tubes,
5- water receiving funnels, 6- aqueducts, 7- water storage barrels, 8- weigh bucket, 9- test specimens to be measured, 10- water pumps.
Specific implementation mode
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings, but the utility model
It is not limited to these examples.
Subject support means described in the utility model can be diversified forms, such as frame-type, table type, box-type
Etc..
Embodiment 1
A kind of device for determining permeation coefficient of seepy material, as shown in Figure 1, 2, including a supporting box 1, supporting box 1
Controller 2 is installed from top to bottom, head water tank 3 is determined, test block stationary fixture 4, water receiving funnel 5, aqueduct 6, water storage barrel 7, claims
Measuring tank 8；
As shown in Figure 1, 2, 3, it is in rectangular tubbiness that it is whole, which to determine head water tank 3, and water inlet 31, spilling water are provided on same side
Mouth 32, wherein gap 32 are higher than water inlet 31；Determine 3 inner space of head water tank to be divided into water cushion chamber 33, water-injecting cavity 34
With spilling water cushion chamber 35；Water-injecting cavity 34 is located at the centre position for determining head water tank 3, and water inlet cushion chamber 33 is being determined outside head water tank 3
It encloses, surrounds water-injecting cavity 34 from three face of lower layer, spilling water cushion chamber 35 is determining 3 periphery of head water tank, water-injecting cavity is surrounded from three face of upper layer
34；Water inlet cushion chamber 33 position contour on two opposite faces is provided with the flat rectangular water filling port of 2 transverse directions towards water-injecting cavity 34
341；Water-injecting cavity 34 is communicated by open top 342 with spilling water cushion chamber 35；Cushion chamber 33 of intaking passes through water inlet 31 and water inlet
Pipe 311 is connected to；Spilling water cushion chamber 35 is connected to by gap 32 with overflow pipe 321；Water inlet pipe 311 and overflow pipe 321 connect jointly
The water storage barrel 7 of tape splicing water pump 10；34 bottom of water-injecting cavity is provided with through-hole 1；
As shown in figure 4, test block stationary fixture 4, including the mounting plate 42 of through-hole 2 41 is opened up, and the side with installation edge
Shape short tube 43；42 side of mounting plate is fixedly connected with the installation edge of rectangular short tube 43 by being spirally connected, and the other side is weldingly fixed on fixed
On 3 bottom surface of head water tank, make through-hole one, through-hole two and the alignment of rectangular short tube mouth；It is lined between mounting plate 42 and rectangular short tube 43
Elastic sealing gasket；It is fixed in use, test specimen 9 to be measured is placed in pendency in rectangular short tube 43；
As shown in Figure 1, 2, open area is more than 43 lower open area of rectangular short tube, the connection of 5 bottom of water receiving funnel on water receiving funnel 5
Aqueduct 6,6 lower section of aqueduct are provided with the weighing bucket 8 of electronic weighing instrument.
Controller 2 is equipped with input button, the chip of preset calculation procedure, storage device and display screen；Chip and weighing bucket 8
Electronic weighing instrument electrical connection, for receives penetrate water metering device measured data；Input equipment is electrically connected with chip, is used
In being manually entered operational order to chip；Storage device is electrically connected with chip, the data provided for storage chip；Display screen with
Chip is electrically connected, the result for display chip processing.
The part that do not addressed in the utility model uses or uses for reference prior art and can be realized.
In the description of the present invention, it should be understood that term "center", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", " back of the body ", "bottom" "inner", "outside" is orientation based on ... shown in the drawings or position
Relationship is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply the indicated device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.
Specific embodiment described herein is only the spiritual example explanation to the utility model.This practicality
Novel person of ordinary skill in the field can make various modifications or additions to the described embodiments or adopt
It is substituted with similar mode, but without departing from the spirit of the present application or surmounts model defined in the appended claims
It encloses.
Claims (8)
1. a kind of device for determining permeation coefficient of seepy material, including subject support means, head device for limiting, test specimen fix dress
It sets, through water collecting device and through water metering device；
The head device for limiting is only fixedly connected by side with the support device top；The head limits dress
It sets side wall and is equipped with water inlet and gap, water inlet is less than gap；The head device for limiting inner space is divided into
Water inlet cushion chamber, water-injecting cavity and spilling water cushion chamber；The water-injecting cavity is located at centre, and the water inlet cushion chamber is located at periphery
Lower layer, the spilling water cushion chamber are located at the upper layer of periphery, i.e., water inlet cushion chamber and spilling water cushion chamber are set around water-injecting cavity jointly
It sets；The water inlet cushion chamber is provided at least two water filling port into water-injecting cavity in the isometry position of not ipsilateral；The water filling
Chamber is communicated by open top with the spilling water cushion chamber；The water inlet cushion chamber passes through the water inlet and water inlet pipe
Connection；The spilling water cushion chamber is connected to by the gap with overflow pipe；The water-injecting cavity bottom is provided with through-hole one,
It is communicated with the test piece fixing device；
The test piece fixing device has the mounting plate for opening up through-hole two, mounting plate side that short tube is fixedly mounted；The installation
The plate other side is tightly fastened with the lower surface of the head device for limiting and connect, and through-hole one, through-hole two and short tube mouth are just opposite；
The short tube is for the fixed test specimen to be measured that dangles；
Described is mounted on the subject support means lower part through water collecting device, is located at below the test piece fixing device,
Including water receiving container and aqueduct, the water receiving upper opening of container area is more than the short tube lower open area, and the water receiving holds
Device bottom opening penetrates water metering device by the aqueduct connection；
Described is located at the subject support means bottom through water metering device, includes the container with weighing function.
2. device described in claim 1, which is characterized in that the head device for limiting is in integrally rectangular shaped post.
3. device described in claim 1, which is characterized in that the water inlet that is opened up on the head device for limiting side wall and overflow
The mouth of a river is on the same side of head device for limiting.
4. device described in claim 1, which is characterized in that the water inlet cushion chamber and spilling water cushion chamber is surrounded from three faces
The water-injecting cavity setting, and be symmetrical arranged 2 groups of water filling ports on the opposite side wall of water inlet cushion chamber and communicated with water-injecting cavity.
5. device described in claim 1, which is characterized in that the water filling port be the flat rectangular water filling port being laterally arranged or
Laterally consecutive porous type water filling port.
6. device described in claim 1, which is characterized in that the water inlet pipe and overflow pipe connects one with water pump jointly
Water storage apparatus, to recycle the water outlet of overflow pipe.
7. device described in claim 1, which is characterized in that the subject support means top is further provided with control and shows
Show unit, the control and display unit at least provided with input equipment, the chip of preset calculation procedure, storage device and display
Screen；The chip is electrically connected with described through water metering device, for receiving the measured data through water metering device；Institute
The input equipment stated is electrically connected with the chip, for being manually entered operational order to chip；The storage device and institute
The chip electrical connection stated, the data provided for storage chip；The display screen is electrically connected with the chip, for showing
The result of chip processing.
8. device described in claim 1, which is characterized in that the subject support means bottom is further provided with water pump
Water storage device；The water storage device passes through the water inlet of water pump and pipeline connection by the pipeline connection gap
Mouthful, at the same can also by water pump and pipeline connection it is described through container of the water with weighing function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721492445.1U CN207650070U (en) | 2017-11-10 | 2017-11-10 | A kind of device for determining permeation coefficient of seepy material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721492445.1U CN207650070U (en) | 2017-11-10 | 2017-11-10 | A kind of device for determining permeation coefficient of seepy material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207650070U true CN207650070U (en) | 2018-07-24 |
Family
ID=62888783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721492445.1U Withdrawn - After Issue CN207650070U (en) | 2017-11-10 | 2017-11-10 | A kind of device for determining permeation coefficient of seepy material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207650070U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677585A (en) * | 2017-11-10 | 2018-02-09 | 北京耐尔得仪器设备有限公司 | The device for determining permeation coefficient and measuring method of a kind of seepy material |
-
2017
- 2017-11-10 CN CN201721492445.1U patent/CN207650070U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677585A (en) * | 2017-11-10 | 2018-02-09 | 北京耐尔得仪器设备有限公司 | The device for determining permeation coefficient and measuring method of a kind of seepy material |
| CN107677585B (en) * | 2017-11-10 | 2024-01-09 | 北京耐尔得仪器设备有限公司 | Device and method for measuring water permeability coefficient of water permeable material |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180724 Effective date of abandoning: 20240109 |